Grendel (1971) is perhaps Gardner's most famous novel. The story is a retelling of the Anglo-Saxon epic, Beowulf, from the monster's perspective.

Beowulf is considered a masterpiece of medieval literature. It is a tale of heroes and monsters, life and death. Anyone reading Grendel should also read Beowulf.

Gardner's book of advice for young writers, The Art of Fiction: Notes on Craft for Young Writers, offers insight into his ideas about art and life. Also included are a number of exercises designed to motivate writers.